His cheeseless burger.
Bun, burger, ketchup, onion, bun.
That's right. You're undoubtedly baffled reading this; just imagine how I felt watching this with my own two eyes. Onions but no cheese? Just go and take some sauerkraut but skip the mustard, why don'tcha?
|I don't even know what I'm looking at.|
"Doesn't that strike you as a little odd?"
"You don't see any problem with going out of order?"
"I don't think there's any sort of 'condiment order.'"
It thus occurred to me that this condiment order isn't the sort of thing that most people generally think about, nor even one that I had ever consciously thought of. But there just seems to be a general etiquette that goes with condiments, an unspoken code. There are certain condiments that are a little more "exotic" than others, and thus are more likely to be objectionable; and unless you have a specific reason to avoid one condiment (e.g., lactose intolerance), and provided all relevant condiments' availability, it would be a breach of etiquette to take a condiment farther down the chain than one higher up.
For fear that I will have excluded too many condiments, I'm afraid I can't offer a functional actual chain of command; however, I can give you a rough idea:
And that, my friends, is why you never put onions with no cheese.